Artikel Ilmiah : L1C021045 a.n. SHERLYNA ZADA ARIFAH

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NIML1C021045
NamamhsSHERLYNA ZADA ARIFAH
Judul ArtikelHUBUNGAN NITRAT DAN FOSFAT AIR TERHADAP
KELIMPAHAN MOLUSKA DI KAWASAN EDUKASI
MANGROVE DEMANG GEDI KABUPATEN PURWOREJO
Abstrak (Bhs. Indonesia)Kawasan Edukasi Mangrove Demang Gedi di Purworejo merupakan ekosistem
yang subur dan berpotensi menghasilkan nutrien melimpah bagi biota perairan.
Topografi dan aktivitas manusia seperti tambak, pertanian, serta pemukiman
menjadi sumber utama masuknya nitrat (NO₃⁻) dan fosfat (PO₄³⁻). Nutrien ini
dimanfaatkan oleh fitoplankton sebagai produsen primer, sehingga
meningkatkan produktivitas perairan dan mempengaruhi kelimpahan biota
seperti moluska. Penelitian ini bertujuan mengetahui konsentrasi nitrat dan
fosfat, kelimpahan moluska, serta hubungan keduanya. Metode yang digunakan
adalah survei lapangan dengan pendekatan kuantitatif dan analisis statistik
ekologi. Analisis sampel fosfat mengacu pada SNI 6989.31:2021 dan nitrat
menggunakan metode IK-DR900.1/LABLI-KBM. Hasil penelitian menunjukkan
konsentrasi nitrat 0,71–2,56 mg/L dan fosfat 0,16–0,77 mg/L, dengan
kelimpahan moluska 32–112 ind/m². Korelasi antara moluska dan nitrat sebesar
r = -0,229 dan dengan fosfat r = -0,139, menunjukkan hubungan negatif lemah,
serta adanya faktor lain yang turut mempengaruhi kelimpahan moluska seperti
salinitas, DO, dan suhu.
Abtrak (Bhs. Inggris)Mangrove Education Area of Demang Gedi in Purworejo is recognized as a fertile
ecosystem with the potential to generate abundant nutrients for aquatic biota. The
topography and human activities such as aquaculture, agriculture, and settlement are
identified as the main sources of nitrate (NO₃⁻) and phosphate (PO₄³⁻) inputs. These
nutrients are utilized by phytoplankton as primary producers, thereby increasing water
productivity and influencing the abundance of biota such as mollusks. This study was
conducted to determine the concentrations of nitrate and phosphate, the abundance of
mollusks, and their relationship. A field survey method with a quantitative approach and
ecological statistical analysis was applied. Phosphate analysis was carried out based on
SNI 6989.31:2021, while nitrate was analyzed using the IK-DR900.1/LABLI-KBM
method. The results showed that nitrate concentrations ranged from 0.71 to 2.56 mg/L
and phosphate from 0.16 to 0.77 mg/L, with mollusk abundance ranging from 32 to 112
ind/m². The correlation between mollusks and nitrate was obtained at r = -0.229 and with
phosphate at r = -0.139, indicating a weak negative relationship. Other factors such as
salinity, DO, and temperature were also considered to influence mollusk abundance.
Kata kunciKata kunci : Demang Gedi Purworejo; Fosfat; Mangrove; Moluska; Nitrat.
Pembimbing 1Hendrayana, S.Kel., M.Si
Pembimbing 2Any Kurniawati., S. Kel., M.Si
Pembimbing 3
Tahun2025
Jumlah Halaman11
Tgl. Entri2025-08-18 14:14:16.059867
Cetak Bukti Unggah
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